|A new post-flash reference file, FLSHFILE, is being delivered because new post-flash calibration data was taken in Nov 2023 as part of proposal 17343. The raw darks were separated by EXPTIME and FLASHDUR and combined with ACSREJ to create short and long-flashed superdarks. These superdarks were differenced and scaled to create an intermediate data product that was then smoothed with a local median filter and renormalized to produce the final post-flash reference file. This reference file is to be used in the calibration of post-flashed data taken after July 01 2023.
|The ACS WFC bias, dark, CTE dark, and sink files were generated following the ACS WFC anneal on January 30, 2024, and should be used to calibrate ACS WFC observations taken between January 5, 2024 and January 30, 2024.
|Delivery of new STIS CCD bias and dark reference files for CCD data taken between December 22, 2023 and January 24, 2024. The files were generated from data taken in the same time frame under STIS calibration programs 17377 and 17374.
Week 02 reference files were skipped due to instrument safings, as they spanned the safing events and did not correspond to any STIS science datasets. Only one gain 4 bias is available as well.
|These two new bad pixel tables with USEAFTERs of October 24, 2023, and December 07, 2023 were generated using data taken from October 25, 2023, through January 07, 2024. Currently, the Calibration Reference Data System only has WFC3 UVIS bad pixel reference tables up to a USEAFTER date of September 26, 2023. The automated pipeline should now use these reference files as the bad pixel table on any UVIS datasets obtained between the dates above, or beyond because they represent the most accurate measure of pixel stability at the time of the science observation. These WFC3 UVIS bad pixel files were generated using 900 second dark exposures from the HST 30 daily monitoring programs 16967 and 17005 as well as cycle 31 programs 17345 and 17347. These two bad pixel tables were created using darks calibrated with the yearly postflash file. See WFC3 ISR 2023.01 for information about yearly postflash files. More information about the UVIS bad pixel tables is outlined in the WFC3 ISR 2018.15 and WFC3 ISR 2021.14.